Census tract · Peoria County
Census Tract 31.04, Peoria County, Illinois
Census Tract 31.04, GEOID 17143003104, in Peoria County, Illinois, mostly within Peoria (93% of its census blocks). 3,264 residents in the ACS 2020-2024 5-year estimates (±857); the 2020 Census counted 3,467.
Residents, 2020-2024
3,264
±857 (90% margin)
2020 Census count: 3,467
Median household income
$66,721
±$11,461 (90% margin)
Peoria County: $65,108
Median home value
$221,500
±$37,564 (90% margin)
Peoria County: $158,500
Median gross rent
$1,091
±$175 (90% margin)
Peoria County: $993
Where is Census Tract 31.04?
Census Tract 31.04 is one of 49 census tracts in Peoria County, Illinois. It covers 1.27 square miles of land, 2,739 residents per square mile in 2020. Its GEOID, 17143003104, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Peoria | 93% |
| Peoria City Township | 77% |
| Kickapoo Township | 23% |
5 census tracts border Census Tract 31.04: Tract 30 ($70,111), Tract 31.01 ($65,204), Tract 31.03 ($66,454), Tract 34.03 ($87,946) and Tract 39 ($162,500). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 31.04?
The 2020-2024 American Community Survey puts Census Tract 31.04's population at 3,264 (±857) in 1,436 households; the 2020 Census counted 3,467 residents and 1,843 housing units.
| Measure | Tract 31.04 | Peoria |
|---|---|---|
| Total population | 3,264 ±857 | 112,169 |
| Households | 1,436 ±172 | 49,037 |
| Average household size | 2.26 ±0.49 | 2.20 |
| Housing units | 1,520 ±145 | 54,010 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 31.04?
The median resident of Census Tract 31.04 is 31.4 years old; 27.9% are under 18 and 17.2% are 65 or older. The largest group is non-Hispanic white residents at 60.1%, then non-Hispanic Black residents at 28.2%.
| Measure | Tract 31.04 | Peoria |
|---|---|---|
| Median age | 31.4 ±6.2 | 35.5 |
| Under 18 years | 27.9% ±12.2 pts | 24.4% |
| 65 years and over | 17.2% ±6.4 pts | 16.8% |
| Hispanic or Latino (any race) | 2.9% ±3.3 pts | 8.0% |
| White alone, not Hispanic | 60.1% ±18.6 pts | 53.2% |
| Black or African American alone, not Hispanic | 28.2% ±22.9 pts | 25.6% |
| Asian alone, not Hispanic | 4.2% ±3.0 pts | 6.6% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.1 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.1 pts | 0.0% |
| Two or more races, not Hispanic | 3.6% ±3.3 pts | 6.1% |
| Some other race alone, not Hispanic | 1.0% ±1.6 pts | 0.5% |
| Born outside the United States | 28.2% ±20.2 pts | 10.1% |
| Speak a language other than English at home (age 5+) | 16.0% ±8.7 pts | 12.8% |
| Civilian veterans (age 18+) | 4.2% ±2.6 pts | 5.2% |
| With a disability | 10.1% ±2.9 pts | 14.7% |
| No health insurance coverage | 5.6% ±4.1 pts | 6.8% |
| High school graduate or higher (age 25+) | 98.5% ±2.1 pts | 92.2% |
| Bachelor's degree or higher (age 25+) | 48.9% ±10.0 pts | 37.7% |
| Graduate or professional degree (age 25+) | 19.2% ±6.6 pts | 15.7% |
| Lived in the same house a year earlier | 87.4% ±5.1 pts | 84.7% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 31.04 earn?
Half of the 1,436 households in Census Tract 31.04 earn less than $66,721 a year (±$11,461), against $65,108 across Peoria County: 17th highest of the county's 46 tracts with a reliable estimate.
| Measure | Tract 31.04 | Peoria |
|---|---|---|
| Median household income | $66,721 ±$11,461 | $59,410 |
| Mean household income | $125,311 ±$40,351 | $87,803 |
| Per capita income | $55,145 ±$24,442 | $38,466 |
| People below the poverty line | 27.6% ±23.3 pts | 21.0% |
| Children under 18 below the poverty line | 58.8% ±40.6 pts | 28.4% |
| Households receiving SNAP | 9.7% ±6.8 pts | 22.6% |
| Households with a computer | 97.2% ±2.0 pts | 95.1% |
| Households with a broadband subscription | 93.4% ±3.7 pts | 89.6% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 31.04?
Owners occupy 61.5% of Census Tract 31.04's occupied homes and renters 38.5%. The median owner-occupied home is valued at $221,500 by its owner (±$37,564). The median renter pays $1,091 a month including utilities, and 36.2% of renters pay 35% or more of their income on rent.
| Measure | Tract 31.04 | Peoria |
|---|---|---|
| Median home value (owner-occupied) | $221,500 ±$37,564 | $156,200 |
| Median gross rent | $1,091 ±$175 | $1,005 |
| Renters paying 35% or more of income on rent | 36.2% ±18.1 pts | 42.8% |
| Median monthly owner costs, with a mortgage | $1,862 ±$118 | $1,525 |
| Owner-occupied homes | 61.5% ±9.5 pts | 57.5% |
| Renter-occupied homes | 38.5% ±9.5 pts | 42.5% |
| Housing units | 1,520 ±145 | 54,010 |
| Single-family detached homes | 43.9% ±6.9 pts | 63.1% |
| Mobile homes | 0.7% ±1.1 pts | 0.4% |
| Built 2020 or later | 0.0% ±2.4 pts | 0.6% |
| Built 2010 to 2019 | 6.0% ±6.6 pts | 4.8% |
| Built 1939 or earlier | 5.3% ±6.6 pts | 20.4% |
| Households with no vehicle | 0.8% ±1.2 pts | 10.1% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 31.04 get to work?
81.8% of Census Tract 31.04's workers drive alone and 10.7% work from home. The average trip to work takes 17.2 minutes.
| Measure | Tract 31.04 | Peoria |
|---|---|---|
| In the labor force (age 16+) | 64.4% ±6.8 pts | 62.8% |
| Unemployment rate | 7.9% ±7.8 pts | 7.5% |
| Drove alone to work | 81.8% ±7.9 pts | 74.6% |
| Carpooled | 3.6% ±3.1 pts | 8.8% |
| Public transportation | 1.7% ±1.2 pts | 1.7% |
| Walked | 1.3% ±2.5 pts | 2.0% |
| Worked from home | 10.7% ±6.6 pts | 11.6% |
| Mean travel time to work | 17.2 min ±2.8 | 17.9 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 31.04 compare with the other tracts in Peoria County?
Among Peoria County's tracts with a reliable estimate, Census Tract 31.04 ranks as shown below (1 = highest).
| Measure | In Peoria County | In Peoria |
|---|---|---|
| Population | 30th of 49 | 16th of 33 |
| Residents per square mile | 22nd of 49 | 20th of 33 |
| Median household income | 17th of 46 | 7th of 30 |
| Per capita income | 8th of 49 | 5th of 33 |
| Median home value | 8th of 45 | 5th of 29 |
| Median gross rent | 15th of 48 | 10th of 32 |
| Bachelor's degree or higher | 12th of 42 | 10th of 26 |
| Median age | 41st of 49 | 25th of 33 |
| Owner-occupied share | 29th of 48 | 14th of 32 |
The tracts next to it on Peoria County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 49.01 | 14th | $74,942±$12,071 · within the margin of this tract |
| Tract 46 | 15th | $71,130±$6,235 · within the margin of this tract |
| Tract 30 | 16th | $70,111±$16,340 · within the margin of this tract |
| Tract 31.04 | 17th | $66,721±$11,461 |
| Tract 31.03 | 18th | $66,454±$6,720 · within the margin of this tract |
| Tract 36.02 | 19th | $66,014±$8,605 · within the margin of this tract |
| Tract 42 | 20th | $65,404±$10,484 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 31.04?
4 of the 18 figures for Census Tract 31.04 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections